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Product Specifications:
| Item | Spiral Point Tap |
| 55% Thread Drill Size | #3 |
| 65% Thread Drill Size | #5 |
| 75% Thread Drill Size | #7 |
| Coolant Fed | Non Coolant Through |
| Drill Bit Size | 0.198", 0.2013", 0.2045", 0.2078", 0.211" |
| Extended Neck | Yes |
| Finish | Bright |
| Fits Class | Class H3 |
| Measurement System | Fractional Inch |
| Number Of Flutes | 3 |
| Overall Length | 2 1/2" |
| Primary Material Application | Steel |
| Primary Material Application Iso Code | P |
| Secondary Material Application | Cast Iron, Hardened Steel, Stainless Steel, Steel |
| Secondary Material Application Iso Code | H, K, M, P |
| Shank Dia. | 1/8" |
| Shank Length | 1 1/2" |
| Shank Type | Straight |
| Shank Type - Machining | Straight |
| Spiral Direction | Neutral |
| Square Size | 0.19" |
| System Of Measurement | Imperial |
| Tap Chamfer | Plug |
| Tap Finish | Bright |
| Tap Material | High Speed Steel E |
| Tap Thread Size | 1/4"-20 |
| Thread Direction | Right Hand |
| Thread Length | 9/16" |
| Thread Limit | H5 |
| Thread Limit/class Of Fit | H5, H3 |
| Thread Size | 1/4"-20 |
| Thread Standard | Coarse |
| Threads Per Inch | 20 |
Shipping Info:
| Ship weight (kg) | 0.01 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Thread Size | Thread Length | Overall Length | 75% Thread Drill Size | Number Of Flutes | Thread Limit | Tap Finish | Shank Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
2511401 | #4-40 | 1/4" | 2 3/16" | 2.2 mm | 2 | 2B | Black Oxide | 9/64" | €34.75 | |
![]() |
2813400 | #10-24 | 7/16" | 2 11/32" | #25 | 3 | H3 | Bright | 3/32" | €30.65 | |
![]() |
2813401 | #10-24 | 7/16" | 2 11/32" | #25 | 3 | H3 | Black Oxide | 3/32" | €30.88 | |
![]() |
2818401 | #10-24 | 7/16" | 2 11/32" | #25 | 3 | H5 | Black Oxide | 3/32" | €29.94 | |
![]() |
2818400 | #10-24 | 7/16" | 2 11/32" | #25 | 3 | H5 | Bright | 3/32" | €29.94 | |
![]() |
2813900 | #10-32 | 7/16" | 2 11/32" | #21 | 3 | H4 | Bright | 3/32" | €29.94 | |
![]() |
2808800 | #10-32 | 7/16" | 2 11/32" | #21 | 3 | H2 | Bright | 3/32" | €29.94 |
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Contact us
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OSG 2840000 Spiral Point Tap, 1/4-20 Thread Size, 9/16 Inch Thread Length, 2 1/2 Inch Length
€32.73 /unit


